If you are installing Windows in a DOS environment, you should run the disk cache tool Smartdrv.exe before installation, which can effectively improve the Windows installation speed. This is not required if the operating system installation is started in a Windows environment. Because Windows has disk cache management capabilities. Since using a compatible machine, how to test whether this new operating system is compatible with my machine before installing a new Windows XP system? You can first visit Microsoft's Windows XP hardware support website http://www.microsoft.com/Hcl/, here you can find all the mainstream devices that Windows XP can support. In addition, depending on the usage, the new Windows XP can well support the various popular hardware devices. If your computer is compatible with Windows 2000, running Windows XP will not be a problem. Some Windows 2000 device drivers are also compatible with Windows XP. As for software, the related issues may be smaller and the chances of compatibility issues are smaller. However, some programs that need to call the underlying files of the system will not run, such as anti-virus programs, disk management tools, and so on. In addition, usually install Windows just type Setup and press Enter. As everyone knows, Setup can also be followed by a lot of parameters, flexible use, can speed up the installation. /tpath [path] is the path to the temporary files generated during the Windows 98 installation. Please refer to the storage path of the file to the non-installation disk, which only makes the installation speed faster, and also makes the file fragmentation of the installation disk greatly reduced, and does not need to be defragmented after installation. /is Scan disk is not scanned before installation. This parameter is available on a new hard disk or a hard disk that has just been formatted. /IE does not create an emergency floppy disk. /iv Skips bulletins that appear during Windows 98 installation to save installation time. /im Skips memory checks. Do not use this parameter for new machines, or Windows 98 will often have problems. There seem to be multiple versions of Windows, such as upgraded version, retail version, OEM version, Select version, etc. What are their meanings? Windows is indeed divided into many versions for different market and user needs. These versions are in use. There is no difference, just for different sales channels. The upgrade version is for users who already have an earlier version of Windows. When installing this system, Windows will find out if there is an earlier version of Windows on the current hard disk. If it is not, it will not be installed. The retail version is a stand-alone software that can be installed separately. The OEM version is a version that is sold with the new computer and is generally not sold separately. Strictly speaking, the Select version is not a software version, but a Microsoft-issued Select License. It is divided into Select 5.0 and Select 6.0. Customers are research institutes and large and medium-sized enterprises that can predict purchases. Buying Microsoft products in this way requires customers to purchase quantitative products within a specified number of years.